Variable focal length lens



FIG. 1 is a front, right-side, top, perspective view of the variable focal length lens;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a right-side elevational view thereof;

FIG. 5 is a left-side elevational view thereof;

FIG. 6 is a rear elevational view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines shown in the drawings depict portions of the variable focal length lens that form no part of the claimed design. 

CLAIM The ornamental design for a variable focal length lens, as shown and described. 